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![]() Although this motorized microdrive represented a significant technical improvement over conventional manually adjustable drives, several aspects of its design made it difficult to apply to recordings from multiple sites with independent control over a large number of motorized microdrives.Īnother small-scale motorized microdrive ( Venkateswaran et al. ![]() A modified version of this motorized microdrive was used to record from mice ( Luo et al. ![]() This technical advancement allowed adjustment during active behavior and eliminated the mechanical stress introduced by holding the animal's head during adjustment. These microdrives must be small and light in weight, because of the physical limitations of the animal.įor songbirds, a miniature headstage with three micromotors was developed to adjust electrodes while the bird sang in a soundproof box ( Fee and Leonardo 2001). The recording devices used in these experiments use various kinds of manually adjustable microdrives, which rely on miniature screws or threaded rods to advance electrodes ( Gray et al. ![]() ![]() Electrophysiological recordings taken from freely behaving animals with chronically implanted microelectrodes have played a critical role in our understanding of neuronal activity at the population level ( Fujii and Graybiel 2005 McCasland 1987 O'Keefe and Dostrovsky 1971 Ranck 1973 Taube et al. ![]()
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